Friend And Foe: When To Cooperate, When To Compete, And How To Succeed At Both - Paperback - Some have argued that humans are fundamentally competitive and that pursuing our self-interest is the best way to get ahead.

The Power Of When - Most advice centers on what to do, or how to do it, and ignores the when of success. But exciting new research proves there is a right time to do just about everything, based on our biology and hormones.